Pella® Impervia® Series Windows and Doors

The Pella® Impervia® line blends style with endurance in fiberglass windows and patio doors that, as the name suggests, are impervious to nearly all types of weather.

Impervia’s toughness comes from Duracast®, our unique fiberglass composite. It’s one of the toughest and most well-built materials in the market for fiberglass windows and patio doors1. Duracast stands up to temperatures from severe heat to subzero cold, making Pella Impervia windows and exterior doors exceptional for all seasons.

The impressive insulating qualities of our fiberglass replacement windows and patio doors boost your home’s coziness and help reduce energy use. Optional foam-insulating frames may be included on these ENERGY STAR®-certified windows and patio doors.

Available Door Styles

1In testing performed in accordance with ASTM testing standards. Duracast® fiberglass composite from Pella has displayed superior performance in strength, ability to withstand heat and cold, and resistance to dents and scratches.

2Based on comparing written limited warranties of leading national wood window and wood patio door brands. See Pella written Limited Warranty for details, including exceptions and limitations, at pella.com/warranty, or contact Pella® Customer Service at 877-473-5527.